Removing The M40E Rear Lower Impeller Assembly; Installing The M40E Rear Lower Impeller Assembly; Figure 91: Removing The Rear Lower Impeller Assembly - Juniper M40E Hardware Manual

M40e Multiservice Edge Router Hardware Guide
176
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The assembly is hot-removable and hot-insertable, as described in "M40e
Field-Replaceable Units (FRUs)" on page 157.
Removing the M40e Rear Lower Impeller Assembly on page 176
Installing the M40e Rear Lower Impeller Assembly on page 176

Removing the M40e Rear Lower Impeller Assembly

To remove the rear lower impeller assembly (see Figure 91 on page 176):
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to an M Series, MX Series, or T Series
Router" on page 232.
Loosen the thumbscrew at each corner of the impeller cover, using a Phillips
2.
screwdriver if necessary.
Grasp the thumbscrews at opposite corners of the impeller cover and slide the
3.
assembly halfway out of the chassis.
CAUTION: To avoid injury, as you slide the assembly out of the chassis do
not touch any part of the impeller behind the front panel—the impeller
might still be spinning.
When the impeller is no longer spinning, slide the assembly completely out of the
4.
chassis.

Figure 91: Removing the Rear Lower Impeller Assembly

Installing the M40e Rear Lower Impeller Assembly

To install the rear lower impeller assembly (see Figure 92 on page 177:
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to an M Series, MX Series, or T Series
Router" on page 232.
Orient the impeller so that the label is on the top. Align the rails on the upper edges
2.
of the impeller assembly with the guides inside the chassis.
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